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1. 发明授权

US08335656B2 Short-circuit recognition method for an electric network 失效
标题翻译：电网短路识别方法
公开(公告)号：US08335656B2
公开(公告)日：2012-12-18
申请号：US12740229
申请日：2008-10-10
申请人： Frank Berger , Timo Mützel
发明人： Frank Berger , Timo Mützel
IPC分类号： G01R31/00
CPC分类号： H02H3/44 , H02H3/08
摘要： A short-circuit recognition method is disclosed, especially an early short-circuit recognition method, for an electric network. In at least one embodiment, in order to improve the switching times of protective devices, the current and the first and second temporal derivation thereof are continuously and consecutively determined at the same time and in the same temporal distance and are processed as respective digital sequences of numbers. Every sequence of numbers is associated with a defined threshold value, the numbers of the three sequences of numbers being compared with the respective threshold value associated therewith. Every number that exceeds the threshold value associated therewith is associated with a weighting variable and the weighting variables that pertain to the same time are added up to a first weighting sum. The first weighting sums are added to a second weighting sum for a defined number of directly subsequent times and the second weighting sum is compared with an additional defined threshold value. When the second weighting sum exceeds the defined threshold value, a short circuit is recognized.
摘要翻译：公开了一种用于电网的短路识别方法，特别是早期的短路识别方法。在至少一个实施例中，为了改善保护装置的切换时间，其当前和第一和第二时间导出在同一时间和相同的时间距离上连续且连续地确定，并被处理为相应的数字序列数字。每个数字序列与定义的阈值相关联，将三个数字序列的数量与与其相关联的相应阈值进行比较。超过与其相关联的阈值的每个数字与加权变量相关联，并且与相同时间相关的加权变量被加到第一加权和。第一加权和被添加到第二加权和以确定数量的直接后续时间，并且将第二加权和与额外定义的阈值进行比较。当第二加权和超过定义的阈值时，识别出短路。

2. 发明申请

US20100312505A1 SHORT-CIRCUIT RECOGNITION METHOD FOR AN ELECTRIC NETWORK 失效
标题翻译：短路电路识别方法
公开(公告)号：US20100312505A1
公开(公告)日：2010-12-09
申请号：US12740229
申请日：2008-10-10
申请人： Frank Berger , Timo Mützel
发明人： Frank Berger , Timo Mützel
IPC分类号： G01R31/02
CPC分类号： H02H3/44 , H02H3/08
摘要： A short-circuit recognition method is disclosed, especially an early short-circuit recognition method, for an electric network. In at least one embodiment, in order to improve the switching times of protective devices, the current and the first and second temporal derivation thereof are continuously and consecutively determined at the same time and in the same temporal distance and are processed as respective digital sequences of numbers. Every sequence of numbers is associated with a defined threshold value, the numbers of the three sequences of numbers being compared with the respective threshold value associated therewith. Every number that exceeds the threshold value associated therewith is associated with a weighting variable and the weighting variables that pertain to the same time are added up to a first weighting sum. The first weighting sums are added to a second weighting sum for a defined number of directly subsequent times and the second weighting sum is compared with an additional defined threshold value. When the second weighting sum exceeds the defined threshold value, a short circuit is recognized.
摘要翻译：公开了一种用于电网的短路识别方法，特别是早期的短路识别方法。在至少一个实施例中，为了改善保护装置的切换时间，其当前和第一和第二时间导出在同一时间和相同的时间距离上连续且连续地确定，并被处理为相应的数字序列数字。每个数字序列与定义的阈值相关联，将三个数字序列的数量与与其相关联的相应阈值进行比较。超过与其相关联的阈值的每个数字与加权变量相关联，并且与相同时间相关的加权变量被加到第一加权和。第一加权和被添加到第二加权和以确定数量的直接后续时间，并且将第二加权和与额外定义的阈值进行比较。当第二加权和超过定义的阈值时，识别出短路。

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